One vertex per element, one color per generator, with an edge from x to x·s.
(1,2)(3,10)(4,8)(5,14)(6,9)(7,12)(11,15)(13,16)(17,18)(19,24)(20,32,34,43)(21,26)(22,37)(23,27)(25,35,42,36)(28,41,44,48)(29,39)(30,40)(31,46)(33,38,45,47)(17,19,23,29)(18,24,27,39)(20,33)(21,30,22,31)(25,41)(26,40,37,46)(28,35)(32,47)(34,45)(36,44)(38,43)(42,48)(1,3,6,13)(2,7,9,15)(4,12,5,11)(8,16,14,10)(17,20)(18,25)(19,28)(21,36)(22,35)(23,34)(24,38)(26,43)(27,42)(29,44)(30,33)(31,45)(32,37)(39,47)(40,48)(41,46)(1,4,6,5)(2,8,9,14)(3,11,13,12)(7,10,15,16)(19,29)(24,39)(28,44)(30,31)(33,45)(38,47)(40,46)(41,48)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.